26th Congress of International Council of the Aeronautical Sciences
including the 8th AIAA Aviation Technology, Integration, and Operations (ATIO) Conference
14 - 19 September 2008, Anchorage, Alaska, USA
Paper ICAS 2008-3.8.1

THE EFFECTS OF WALL ROUGHNESS ON THE TURBULENT BOUNDARY LAYER

L. Vesely, C. Haigermoser, M. Onorato
Politecnico di Torino, Italy

Keywords: boundary layer, turbulence, roughness

The primary interest of this paper is to observe the effect of the roughness on the turbulent organized motions (coherent structure) for streamwise-wall-normal plane and for streamwise-wall-parallel plane. Results obtained by measurements on 3 different roughness were compared with smooth wall measurement and summarized.

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